func StripComments()

in arrow/_tools/tmpl/main.go [206:267]

• 51 lines of code
• 17 McCabe index (conditional complexity)

func StripComments(raw []byte) []byte {
	var (
		quoted, esc bool
		comment     bool
	)

	buf := bytes.Buffer{}

	for i := 0; i < len(raw); i++ {
		b := raw[i]

		if comment {
			switch b {
			case '/':
				comment = false
				j := bytes.IndexByte(raw[i+1:], '\n')
				if j == -1 {
					i = len(raw)
				} else {
					i += j // keep new line
				}
			case '*':
				j := bytes.Index(raw[i+1:], []byte("*/"))
				if j == -1 {
					i = len(raw)
				} else {
					i += j + 2
					comment = false
				}
			}
			continue
		}

		if esc {
			esc = false
			continue
		}

		if b == '\\' && quoted {
			esc = true
			continue
		}

		if b == '"' || b == '\'' {
			quoted = !quoted
		}

		if b == '/' && !quoted {
			comment = true
			continue
		}

		buf.WriteByte(b)
	}

	if quoted || esc || comment {
		// unexpected state, so return raw bytes
		return raw
	}

	return buf.Bytes()
}